A random experiment means that: MCQ with Answer and Explanation

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A random experiment means that:

A. The outcome can be predicted exactly

B. The experiment has no outcome

C. The experiment always gives the same result

D. The outcomes are uncertain but the set of all possible outcomes is known

Answer: Option D

Solution (By JKSSB Mock Tests)

In a random experiment, the result is not predictable with certainty but all possible outcomes are known.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

In a mailed questionnaire method, the major disadvantage is:

A. Personal contact

B. Low cost

C. High response rate

D. Non-response bias

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Correct Answer: Option D

Explanation:
Mailed questionnaires often suffer from low response rates, leading to non-response bias.

This question belongs to: Accountancy and Statistics Statistics

Question #2

The weighted harmonic mean of values 2 and 3 with weights 3 and 2 respectively is:

A. 2.4

B. 2.8

C. 2.31

D. 2.5

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Correct Answer: Option C

Explanation:
Weighted HM = (Σw) / Σ(w/x) = 5 / (3/2 + 2/3) = 5 / (1.5 + 0.6667) = 5/2.1667 ≈ 2.3077.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Life tables are primarily used to calculate:

A. Economic dependency ratios

B. Fertility rates

C. Migration rates

D. Life expectancy and survival probabilities

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Correct Answer: Option D

Explanation:
Life tables summarize age-specific mortality to compute life expectancy at various ages, probability of survival, and other demographic measures essential for actuarial and population studies.

This question belongs to: Accountancy and Statistics Statistics

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